Method for mixing light of LED cluster

Abstract

The method for mixing light of LED cluster is disclosed. Firstly, a plurality of LED cluster are provided, then the step is importing the related data, then the step for the continuous genetic algorithm and the merit function are respectively carried out, finally the step for exporting data is achieved. The applied field of the invention is able to comprise LED cluster, fluorescence light source array, and fluorescence lamp array, as well as the other light source field etc.

What is claimed is: 
     
       1. A method for mixing light of constant light source array, wherein the constant light source array is selected from the group consisting of LED cluster, fluorescence light source array, and fluorescence lamp array, comprising:
 providing a plurality of constant light source array and importing a specific data of the plurality of constant light source array, wherein importing the specific data of constant light source array comprises importing a spectrum and a color temperature of the constant light source array; 
 using a continuous genetic algorithm to conduct a calculation, wherein the continuous genetic algorithm encodes a plurality of parameters into a data structure suitable for the calculation of the continuous genetic algorithm; 
 conducting a merit function, wherein the conducting merit function comprises conducting to judge a standard value including judging a maximum color rendering index and a maximum luminous efficiency, and considering an optimal solution of the color rendering index and the luminous efficiency, comprising:
   ƒ= w×CQS +(1 −w )× LE,  
 
   subject to the constrain: weight wε[0,1],
 
 
  w represents the weight ratio, CQS represents the color rendering index (saturation level of color), and LE represents the luminance efficacy (lm/W); and 
 showing an optimization result in order to form the method for mixing light of constant light source array, wherein the optimized results comprises a weight ratio, an optimized color quality scale, a luminous efficiency, and a spectral power distribution of the constant light source array. 
 
     
     
       2. A method for mixing light of constant light source array, wherein the constant light source array is selected from the group consisting of LED cluster, fluorescence light source array, and fluorescence lamp array, comprising:
 providing a plurality of constant light source array, and importing a specific data of the constant light source and setting an initial system, wherein the specific data comprises a spectrum and a color temperature of the plurality of constant light source array; 
 setting a boundary condition, wherein the boundary condition comprises setting a driven current and an operation ambient temperature, comprising: 
 
       
         
           
             
               
                 
                    
                   
                     
                       ( 
                       
                         x 
                         , 
                         y 
                       
                       ) 
                     
                     - 
                     
                       ( 
                       
                         
                           x 
                           T 
                         
                         , 
                         
                           y 
                           T 
                         
                       
                       ) 
                     
                   
                    
                 
                 < 
                 0.01 
               
               , 
               
                 
 
               
               ⁢ 
               
                 
                   where 
                   ⁢ 
                   
                       
                   
                   ⁢ 
                   x 
                 
                 = 
                 
                   
                     
                       X 
                       
                         X 
                         + 
                         Y 
                         + 
                         Z 
                       
                     
                     ⁢ 
                     and 
                     ⁢ 
                     
                         
                     
                     ⁢ 
                     y 
                   
                   = 
                   
                     Y 
                     
                       X 
                       + 
                       Y 
                       + 
                       Z 
                     
                   
                 
               
             
           
         
          where X, Y, Z in equation (2) represent tristimulus values specified in the International Commission on Illumination (CIE) system. The error defined in the mathematical equation (2) is 0.01 color unit, because the human eyes are relatively tardy to the vision response of high illumination; 
         conducting an optimization analysis, wherein the optimization analysis comprises calculating a best luminous efficiency and a high color rendering index by an continuous genetic algorithm, wherein the continuous genetic algorithm encodes a plurality of parameters into a data structure suitable for the calculation of the continuous genetic algorithm; 
         conducting a merit function analysis, wherein the merit function analysis comprises obtaining a solution through a spectral power distribution of the constant light source array, comprising:
   ƒ= w×CQS +(1 −w )× LE,  
 
   subject to the constrain: weight wε[0,1],
 
 
          w represents the weight ratio, CQS represents the color rendering index (saturation level of color), and LE represents the luminance efficacy (lm/W); 
         judging an optimization result to form a Yes result or a No result, wherein if a result of judgment is “No”, comprises change a category of the constant light source array, wherein if a result of judgment is “No”, comprises change a luminous characteristics of the constant light source array; 
         determining an optimal weight ratio if a result of judgment being Yes; 
         using the optimal weight ratio to conduct an optimization analysis; 
         conducting a deviation analysis, wherein the deviation analysis comprises measuring a spectral power distribution on a surface of the constant light source and a feedback of a driven current continuously, conducting a monitoring and a correcting; and 
         showing an optimization result in order to form the method for mixing light of constant light source array, wherein showing the optimized results comprises a weight ratio, an optimized color quality scale, a luminous efficiency, and a spectral power distribution of the constant light source array.